1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff08aad238eb832c95d1deb7a280e6cb43e8724f02741d6b09cfc707c5a7b9f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/95832094-8c80-4f11-9c9f-665f2919de25.json and https://artists.proofprofile.net/proofs/artist/95832094-8c80-4f11-9c9f-665f2919de25.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc526556aabb259f7bc35ad129aedc4b05887b4733d3a7bc30ed37bb6af37a216. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42001189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96a01723ceb46cc7d8ef7df48dc479e8aba74e3377f8c4589f735994cb7415c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42001183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da997e5a89577bdec72231c1690d63b40d567e9ec92f3c530d086ec630f9c63. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42001181.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe6c56fe5ca0800c539aaacd2b82d95d22353ae40af25b8e63c417ae7c39737. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42001187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7386e966e2ab6bcbe0f2300630af8399eb3678bc79c13ce0d0c4567862cd00. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42001186.
Fields of Hopes and Dreams (VIP) [from "DELTARUNE"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce812a7dd9a78d7c00dd1e345acb9185a92ec19b3978d7f19afb70f599e30b0. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42001182.
Don't Forget (Reprise) [from "DELTARUNE"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6a6db37d43c044b460e71b3bd47409da79c4b9a0f42a63454dfc365d06ebc9e. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42001193.
Victory Fanfare (from "Final Fantasy VII") - Jersey Club Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521bb05411d2fd36cbd24632acfabdb6aa36f4816651b7e0863c9bea98d03adf. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89ddbec807db57bcc9cb5b575e43f8809ea9ba6b61f01d1b99816cc56922c4b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42200047.
Hot Top Volcano (from "Diddy Kong Racing")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe680d00d3755bc9d62e5f2eeda4ac4060527fb895032b06f0fcc0a58283f49. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42200045.
Reach For The Stars (from "Sonic Colors")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819ef763f4817e7d866d2b1175e62dec00be2071806cf103e3d5e8ead47b25e6. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343229a50a6f883fec043fe048513ca4a5f1b47b0e1760a9611b2cc8b0fc48a5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42200051.
Dragon Roost Island (from "The Legend of Zelda: The Wind Waker")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b157fded4ed6e5f2d4ebccc2cec5c045cd9925211becd1c7fcdbdc0c1ef4af. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:34:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5a8e29f805169afd6df5d47cbcddd3377d1cf3147d363b3c74a681baedaa2e. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42200049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa378d831c6553768130846c3b4d569e8301f83f4a373d2532d3d22cd20f7bdf6. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42200048.
Get Athletic (from "Super Mario World 2: Yoshi's Island")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9cb9eedb5f695f65b2913f753b62ad6ed052c0ade925016d33057a3a0696a0. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42200044.